Patent US4195231A successfully refreshed from Google Patents.
US3211056A
Expired / Lapsed
US
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Parallelogram slit structure for a monochromator
Assignee: American Instrument Co Inc
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Filing: 1961-11-28
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Granted: 1965-10-12
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Expires: 1981-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jack M Goldstein
- 👤 George W Lowy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:28
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN AN INSTRUMENT OF THE CHARACTER DESCRIBED, AN ADJSUTABLE SLIT ASSEMBLY COMPRISING A SUPPORT, A FIRST PAIR OF SIDE-BY-SIDE RELATIVELY MOVABLE PLATE MEMBERS HAVING EDGES DEFINING AN ENTRANCE SLIT THEREBETWEEN, A SECOND PAIR OF SIDE-BY-SIDE RELATIVELY MOVABLE PLATE MEMBERS HAVING EDGES DEFINING AN EXIT SLIT THEREBETWEEN, A PARALLELLOGRAM LINKAGE MOUNTED ON SAID SUPPORT AND HAVING A FIRST PAIR OF OPPOSITELY MOVABLE SPACED PARALLEL LINK PORTIONS AND A SECOND PAIR OF SPACED PARALLEL LINK PORTIONS CONNECTING SAID FIRST-NAMED LINK POTIONS, MEANS CONNECTING ONE OF SAID FIRST-NAMED LINK PORTIONS TO THE PLATE MEMBERS ON ONE SIDE OF THE ENTRANCE AND EXIT SLITS, MEANS CONNECTING THE OTHER OF SAID FIRST-NAMED LINK PORTIONS TO THE PLATE MEMBERS ON THE OTHER SIDE OF SAID ENTRANCE AND EXIT SLITS, AN ARM ON ONE OF THE SECOND PAIR OF LINK PORTIONS EXTENIDNG INSIDE THE PARALLELOGRAM LINKAGE PARALLEL TO AND BETWEEN THE FIRST PAIR OF LINK PORTIONS,
Claim 2
Dependent Claim
149 words
IN AN INSTRUMENT OF THE CHARACTER DESCRIBED, AN ADJSUTABLE SLIT ASSEMBLY COMPRISING A SUPPORT, A FIRST PAIR OF SIDE-BY-SIDE RELATIVELY MOVABLE PLATE MEMBERS HAVING EDGES DEFINING AN ENTRANCE SLIT THEREBETWEEN, A SECOND PAIR OF SIDE-BY-SIDE RELATIVELY MOVABLE PLATE MEMBERS HAVING EDGES DEFINING AN EXIT SLIT THEREBETWEEN, A PARALLELLOGRAM LINKAGE MOUNTED ON SAID SUPPORT AND HAVING A FIRST PAIR OF OPPOSITELY MOVABLE SPACED PARALLEL LINK PORTIONS AND A SECOND PAIR OF SPACED PARALLEL LINK PORTIONS CONNECTING SAID FIRST-NAMED LINK POTIONS, MEANS CONNECTING ONE OF SAID FIRST-NAMED LINK PORTIONS TO THE PLATE MEMBERS ON ONE SIDE OF THE ENTRANCE AND EXIT SLITS, MEANS CONNECTING THE OTHER OF SAID FIRST-NAMED LINK PORTIONS TO THE PLATE MEMBERS ON THE OTHER SIDE OF SAID ENTRANCE AND EXIT SLITS, AN ARM ON ONE OF THE SECOND PAIR OF LINK PORTIONS EXTENIDNG INSIDE THE PARALLELOGRAM LINKAGE PARALLEL TO AND BETWEEN THE FIRST PAIR OF LINK PORTIONS,
References Cited (Backward Citations)
DE112229C
Cited
US2587451A
Cited
US2835167A
Cited
US3066420A
Cited
US2964998A
Cited
US3098408A
Cited
US3011391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |