US3123953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
merkl
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:26
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/04; B24B37/042; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
THE METHOD OF MAKING A PIEZOELECTRIC CRYSTAL UNIT FROM A PLATE OF CRYSTALLINE MATERIAL HAVING A PAIR OF OPPOSING FACES OF WHICH ONE IS SMOOTH AND FLAT COMPRISING THE STEPS OF MOUNTING THE SMOOTH FLAT FACE OF SAID PLATE ON AN OPTICAL FLAT, MAKING THE EXPOSED FACE OF SAID PLATE SMOOTH, FLAT AND PARALLEL TO SAID OPTICAL FLAT, DETACHING SAID PLATE FROM SAID OPTICAL FLAT, CEMENTING A SPACER TO ONE OF THE PARALLEL FACES OF SAID PLATE TO FORM A LAMINATED STRUCTURE, MOUNTING SAID LAMINATED STRUCTURE ON SAID OPTICAL FLAT WITH THE FACE OF SAID PLATE ABUTTING SAID OPTICAL FLAT AND LEAVING A FACE OF SAID SPACER FREE, MAKING THE REE FACE OF SAID SPACER SMOOTH, FLAT AND PARALLEL TO SAID OPTICAL FLAT, REVERSING SAID LAMINATED STRUCTURE ON SAID OPTICAL FLAT SUCH THAT THE SMOOTH FLAT FACE OF SAID SPACER ABUTS SAID OPTICAL FLAT AND LEAVING A FACE OF SAID PLATE UNCOVERED, REMOVING CRYSTALLINE MATERIAL ROM THE UNCOVERED FACE OF SAID PLATE UNTIL THE LATTER IS REDUCED TO THE DESIRED DEGREE OF THICKNESS WHILE LEAVING SAID UNCOVERED FACE OF SAID PLATE SMOOTH, FLAT AND PARALLEL TO SAID OPTICAL FLAT, DETACHING SAID LAMINATED STRUCTURE FROM SAID OPTICAL FLAT, AND SEPARATING SAID PLATE FROM SAID LAMINATED STRUCTURE.
Claim 2
Independent Claim
205 words
THE METHOD OF MAKING A PIEZOELECTRIC CRYSTAL UNIT FROM A PLATE OF CRYSTALLINE MATERIAL HAVING A PAIR OF OPPOSING FACES OF WHICH ONE IS SMOOTH AND FLAT COMPRISING THE STEPS OF MOUNTING THE SMOOTH FLAT FACE OF SAID PLATE ON AN OPTICAL FLAT, MAKING THE EXPOSED FACE OF SAID PLATE SMOOTH, FLAT AND PARALLEL TO SAID OPTICAL FLAT, DETACHING SAID PLATE FROM SAID OPTICAL FLAT, CEMENTING A SPACER TO ONE OF THE PARALLEL FACES OF SAID PLATE TO FORM A LAMINATED STRUCTURE, MOUNTING SAID LAMINATED STRUCTURE ON SAID OPTICAL FLAT WITH THE FACE OF SAID PLATE ABUTTING SAID OPTICAL FLAT AND LEAVING A FACE OF SAID SPACER FREE, MAKING THE REE FACE OF SAID SPACER SMOOTH, FLAT AND PARALLEL TO SAID OPTICAL FLAT, REVERSING SAID LAMINATED STRUCTURE ON SAID OPTICAL FLAT SUCH THAT THE SMOOTH FLAT FACE OF SAID SPACER ABUTS SAID OPTICAL FLAT AND LEAVING A FACE OF SAID PLATE UNCOVERED, REMOVING CRYSTALLINE MATERIAL ROM THE UNCOVERED FACE OF SAID PLATE UNTIL THE LATTER IS REDUCED TO THE DESIRED DEGREE OF THICKNESS WHILE LEAVING SAID UNCOVERED FACE OF SAID PLATE SMOOTH, FLAT AND PARALLEL TO SAID OPTICAL FLAT, DETACHING SAID LAMINATED STRUCTURE FROM SAID OPTICAL FLAT, AND SEPARATING SAID PLATE FROM SAID LAMINATED STRUCTURE.
References Cited (Backward Citations)
US2151736A
Cited
US2261792A
Cited
US2345648A
Cited
US2340843A
Cited
US2375003A
Cited
US2382257A
Cited
US2383638A
Cited
US2589403A
Cited
US2440348A
Cited
US2423118A
Cited
US2687603A
Cited
US2705392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |