Patent US4642727A successfully refreshed from Google Patents.
US3226779A
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Assignee: Rylock Co Ltd
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Filing: 1964-06-11
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Granted: 1966-01-04
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Rust David Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:45
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/26347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A WINDOW STRUCTURE INCLUDING A FRAME OUTLINING A WINDOW OPENING AND HAVING MEANS FORMING AN ENDLESS CHANNEL FACING INTO THE OPENING AND WHICH CHANNEL COMPRISES VERTICAL END PORTIONS AND HORIZONTAL TOP AND BOTTOM PORTIONS, A RELATIVELY FIXED WINDOW SASH, SHORTER THAN THE OPENING, DISPOSED IN SAID OPENING AND ENGAGED WITH ONE VERTICAL END PORTION AND THE TOP AND BOTTOM PORTIONS OF THE CHANNEL AND MOVABLE HORIZONTALLY FROM ENGAGE-
Claim 2
Dependent Claim
68 words
A WINDOW STRUCTURE INCLUDING A FRAME OUTLINING A WINDOW OPENING AND HAVING MEANS FORMING AN ENDLESS CHANNEL FACING INTO THE OPENING AND WHICH CHANNEL COMPRISES VERTICAL END PORTIONS AND HORIZONTAL TOP AND BOTTOM PORTIONS, A RELATIVELY FIXED WINDOW SASH, SHORTER THAN THE OPENING, DISPOSED IN SAID OPENING AND ENGAGED WITH ONE VERTICAL END PORTION AND THE TOP AND BOTTOM PORTIONS OF THE CHANNEL AND MOVABLE HORIZONTALLY FROM ENGAGE-
References Cited (Backward Citations)
US2835360A
Cited
US3080023A
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US3037589A
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US3106753A
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US3055468A
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US3136396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |