Patent US3132981A successfully refreshed from Google Patents.
US3132981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing multi-arch coreless flush doors
Assignee: Individual
•
Filing: 1959-07-14
•
Granted: 1964-05-12
•
Expires: 1979-07-14
Abstract
No abstract record available.
Inventors
- 👤 Emmet G Stack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:46
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/7001; B; B27; B27M; B27M3/00; B27M3/0013; B27M3/0086; B27M3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
THE METHOD OF CONSTRUCTING A MULTI-ARCH CORELESS FLUSH DOOR WHICH COMPRISES CONSTRUCTING A FRAME ENCLOSING AN AREA BETWEEN THE FRAME MEMBES, PLACING A COVER SHEET ON EACH SIDE OF THE FRAME TO FORM A SANDWICH, SPREADING AN ADHESIVE BETWEEN THE FRAME AND THE COVER SHEETS AND BETWEEN THE COVER SHEETS ADJACENT THE CENTER OF THEIR AREA, INITIALLY DEPRESSING THE CENTER OF BOTH COVER SHEETS INWARDLY INTO CONTACT WITH THE ENCLOSURE TO GIVE THEM A CONTINUOUSLY CURVED EOME-LIKE SURFACE, SETTING THE CENTER ADHESIVE WITH HIGH FREQUENCY CURRENT, TRANSFERRING THE SANDWICH TO A POINT REMOTE AND STACKING SAID SAND WICH UPON OTHER SANDWICHES IN SPACED APART RELATION AND SUBSEQUENTLY APPLYING HEAT AND PRESSURE TO EACH SANDWICH TO SET THE ADHESIVE BETWEEN THE FRAME AND COVER SHEETS THEREOF, SAID PRESSURE BEING APPLIED SIMULATANEOUSLY TO EACH SANDWICH IN THE STACK.
Claim 2
Independent Claim
136 words
THE METHOD OF CONSTRUCTING A MULTI-ARCH CORELESS FLUSH DOOR WHICH COMPRISES CONSTRUCTING A FRAME ENCLOSING AN AREA BETWEEN THE FRAME MEMBES, PLACING A COVER SHEET ON EACH SIDE OF THE FRAME TO FORM A SANDWICH, SPREADING AN ADHESIVE BETWEEN THE FRAME AND THE COVER SHEETS AND BETWEEN THE COVER SHEETS ADJACENT THE CENTER OF THEIR AREA, INITIALLY DEPRESSING THE CENTER OF BOTH COVER SHEETS INWARDLY INTO CONTACT WITH THE ENCLOSURE TO GIVE THEM A CONTINUOUSLY CURVED EOME-LIKE SURFACE, SETTING THE CENTER ADHESIVE WITH HIGH FREQUENCY CURRENT, TRANSFERRING THE SANDWICH TO A POINT REMOTE AND STACKING SAID SAND WICH UPON OTHER SANDWICHES IN SPACED APART RELATION AND SUBSEQUENTLY APPLYING HEAT AND PRESSURE TO EACH SANDWICH TO SET THE ADHESIVE BETWEEN THE FRAME AND COVER SHEETS THEREOF, SAID PRESSURE BEING APPLIED SIMULATANEOUSLY TO EACH SANDWICH IN THE STACK.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |