Patent US3974983A successfully refreshed from Google Patents.
Patent US3228218A successfully refreshed from Google Patents.
US3228218A
Expired / Lapsed
US
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Lock set assembly
Assignee: National Lock Co
•
Filing: 1963-06-07
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Granted: 1966-01-11
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Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 William B Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:18
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0982; Y10T292/0985; Y10T292/0989; Y10T292/0991; Y10T292/88; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/542; Y10T70/5429; Y10T70/5438
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A LOCK SET ASSEMBLY ADAPTED FOR MOUNTING IN A BORE OF A DOOR, COMPRISING A LONGITUDINALLY SLOTTED AND ROTATABLE CAM TUBE INSERTABLE THROUGH THE BORE AND HAVING A CENTRAL RECESS PROVIDING CAMMING SURFACES INTERMEDIATE ITS LENGTH FOR RETRACTING A LATCH BOLT IN THE EDGE OF THE DOOR, A KNOB MOUNTED ON AND SECURED TO EACH END OF SAID CAM TUBE AND ADAPTED TO ROTATE THE LATTER, AN OUTER AND AN INNER CLAMPING PLATE MOUNTED IN SPACED RELATION ON SAID CAM TUBE BUT HELD STATIONARY AT THE OPPOSITE SIDES OF THE DOOR, INTERNALLY THREADED STUDS MOUNTED ON THE OUTER CLAMPING PLATE AND PROJECTING THROUGH THE BORE TOWARD THE INTERIOR OF THE DOOR, SCREW MOUNTED IN THE INNER CLAMPING PLATE AND HAVING THREADED ENGAGEMENT WITH SAID STUDS TO RETAIN THE CLAMPING PLATES IN SPACES ASSEMBLED RELATION AT THE EXTERIOR AND INTERIOR OF THE DOOR, AN
Claim 2
Dependent Claim
143 words
A LOCK SET ASSEMBLY ADAPTED FOR MOUNTING IN A BORE OF A DOOR, COMPRISING A LONGITUDINALLY SLOTTED AND ROTATABLE CAM TUBE INSERTABLE THROUGH THE BORE AND HAVING A CENTRAL RECESS PROVIDING CAMMING SURFACES INTERMEDIATE ITS LENGTH FOR RETRACTING A LATCH BOLT IN THE EDGE OF THE DOOR, A KNOB MOUNTED ON AND SECURED TO EACH END OF SAID CAM TUBE AND ADAPTED TO ROTATE THE LATTER, AN OUTER AND AN INNER CLAMPING PLATE MOUNTED IN SPACED RELATION ON SAID CAM TUBE BUT HELD STATIONARY AT THE OPPOSITE SIDES OF THE DOOR, INTERNALLY THREADED STUDS MOUNTED ON THE OUTER CLAMPING PLATE AND PROJECTING THROUGH THE BORE TOWARD THE INTERIOR OF THE DOOR, SCREW MOUNTED IN THE INNER CLAMPING PLATE AND HAVING THREADED ENGAGEMENT WITH SAID STUDS TO RETAIN THE CLAMPING PLATES IN SPACES ASSEMBLED RELATION AT THE EXTERIOR AND INTERIOR OF THE DOOR, AN
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |