US3340709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary door lock
Assignee: Individual
•
Filing: 1966-03-29
•
Granted: 1967-09-12
•
Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Hiram A Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:08
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/001; Y; Y10; Y10S; Y10S70/00; Y10S70/27; Y10S70/58; Y10T; Y10T70/00; Y10T70/30; Y10T70/50; Y10T70/5093; Y10T70/554; Y10T70/5562; Y10T70/5571; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7582; Y10T70/7757; Y10T70/7915; Y10T70/7955; Y10T70/7977; Y10T70/7983; Y10T70/80; Y10T70/8432
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN AUXILIARY DOOR LOCK ADAPTED TO PREVENT ACCESS TO A DOOR KNOB OF THE TYPE HAVING AN ENLARGED HEAD PORTION RELATIVE TO A NARROWER NECK PORTION COMPRISING, IN COMBINATION, A HOUSING PROVIDED WITH SIDEWALLS, AN END WALL, AND AN END OPENING ADAPTED TO RECEIVE THE HEAD PORTION OF A DOOR KNOB; FLANGE MEANS MOUNTED IN SAID HOUSING NEAR BUT SPACED FROM SAID END OPENING; AND LATCH MEANS MOUNTED ON SAID HOUSING AND MOVABLE BETWEEN AN EXTENDED POSITION WITHIN SAID HOUSING FOR ENGAGEMENT OF SAID HEAD PORTION BETWEEN SAID FLANGE MEANS AND SAID LATCH MEANS AND A RETRACTED POSITION PROVIDING CLEARANCE BETWEEN SAID
Claim 2
Dependent Claim
102 words
AN AUXILIARY DOOR LOCK ADAPTED TO PREVENT ACCESS TO A DOOR KNOB OF THE TYPE HAVING AN ENLARGED HEAD PORTION RELATIVE TO A NARROWER NECK PORTION COMPRISING, IN COMBINATION, A HOUSING PROVIDED WITH SIDEWALLS, AN END WALL, AND AN END OPENING ADAPTED TO RECEIVE THE HEAD PORTION OF A DOOR KNOB; FLANGE MEANS MOUNTED IN SAID HOUSING NEAR BUT SPACED FROM SAID END OPENING; AND LATCH MEANS MOUNTED ON SAID HOUSING AND MOVABLE BETWEEN AN EXTENDED POSITION WITHIN SAID HOUSING FOR ENGAGEMENT OF SAID HEAD PORTION BETWEEN SAID FLANGE MEANS AND SAID LATCH MEANS AND A RETRACTED POSITION PROVIDING CLEARANCE BETWEEN SAID
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |