US3235301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable retaining means for the reversible latch unit of a unit lock
Assignee: Individual
•
Filing: 1963-10-28
•
Granted: 1966-02-15
•
Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Fred J Russell
- 👤 Roger J Nolin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:01
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/04; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1097; Y10T292/62; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8541; Y10T70/8865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A LOCK WHICH FITS INTO A NOTCH CUT-OUT IN THE EDGE AND ADJACENT FACES OF A DOOR SWINGABLE ABOUT A VERTICAL AXIS, THE COMBINATION OF A RETRACTOR SUBASSEMBLY INCLUDING A RETRACTOR HOUSING, A LATCH SUBASSEMBLY INCLUDING A LATCH HOUSING, TRACK MEANS ON ONE OF SAID HOUSING EXTENDING IN A VERTICAL DIRECTION, SHOE MEANS ON THE OTHER OF SAID HOUSINGS HAVING A VERTICALLY SLIDABLE RETENTION ENGAGEMENT WITH SAID TRACK MEANS, AND RETENTION MEANS RELEASABLY HOLDING SAID HOUSINGS IN ENGAGED RELATIONSHIP.
Claim 2
Dependent Claim
80 words
IN A LOCK WHICH FITS INTO A NOTCH CUT-OUT IN THE EDGE AND ADJACENT FACES OF A DOOR SWINGABLE ABOUT A VERTICAL AXIS, THE COMBINATION OF A RETRACTOR SUBASSEMBLY INCLUDING A RETRACTOR HOUSING, A LATCH SUBASSEMBLY INCLUDING A LATCH HOUSING, TRACK MEANS ON ONE OF SAID HOUSING EXTENDING IN A VERTICAL DIRECTION, SHOE MEANS ON THE OTHER OF SAID HOUSINGS HAVING A VERTICALLY SLIDABLE RETENTION ENGAGEMENT WITH SAID TRACK MEANS, AND RETENTION MEANS RELEASABLY HOLDING SAID HOUSINGS IN ENGAGED RELATIONSHIP.
References Cited (Backward Citations)
US1845197A
Cited
US2676051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |