US3159994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch and lock
Assignee: S B Mfg CO
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Filing: 1962-03-01
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Granted: 1964-12-08
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Expires: 1982-03-01
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:32
CPC Classifications
E; E05; E05B; E05B3/00; E05B3/06; E05B3/065; Y; Y10; Y10T; Y10T292/00; Y10T292/06; Y10T292/08; Y10T292/0863; Y10T292/0867; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1089; Y10T292/96; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5465; Y10T70/5469; Y10T70/55; Y10T70/5518
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A DOOR LOCK, THE COMBINATION WITH LATCH MECHANISM AND LATCH RELEASING MEANS INCLUDING A HANDLE AND SPINDLE ASSEMBLY ROTATABLE FOR LATCH RELEASE, OF MEANS FOR LOCKING THE SAID ASSEMBLY AGAINST ROTATION, A KEY RELEASABLE ROTOR ROTATABLE FOR UNLOCKING THE LOCKING MEANS, A FIRST CAMMING MEANS CONNECTED WITH THE SPINDLE ASSEMBLY, A SECOND CAMMING MEANS CONNECTED WITH THE ROTOR, AND A SINGLE SPRING BIASED CAM FOLLOWER ENGAGEABLE WITH THE FIRST AND SECOND CAMMING MEANS FOR RETURNING TO A PREDETERMINED STARTING POSITION WHICHEVER OF SAID CAMMING MEANS IS DISPLACED FROM SUCH POSITION.
Claim 2
Dependent Claim
91 words
IN A DOOR LOCK, THE COMBINATION WITH LATCH MECHANISM AND LATCH RELEASING MEANS INCLUDING A HANDLE AND SPINDLE ASSEMBLY ROTATABLE FOR LATCH RELEASE, OF MEANS FOR LOCKING THE SAID ASSEMBLY AGAINST ROTATION, A KEY RELEASABLE ROTOR ROTATABLE FOR UNLOCKING THE LOCKING MEANS, A FIRST CAMMING MEANS CONNECTED WITH THE SPINDLE ASSEMBLY, A SECOND CAMMING MEANS CONNECTED WITH THE ROTOR, AND A SINGLE SPRING BIASED CAM FOLLOWER ENGAGEABLE WITH THE FIRST AND SECOND CAMMING MEANS FOR RETURNING TO A PREDETERMINED STARTING POSITION WHICHEVER OF SAID CAMMING MEANS IS DISPLACED FROM SUCH POSITION.
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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |