US3000659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking mechanism for tubular door locks
Assignee: Schlage Lock Co LLC
•
Filing: 1959-07-27
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Granted: 1961-09-19
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Expires: 1979-07-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Schlage
- 👤 Robert A Marotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:28
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/16; E05C1/163; Y; Y10; Y10S; Y10S292/00; Y10S292/53; Y10T; Y10T292/00; Y10T292/57; Y10T292/62; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8541
Claims Analysis
Total Claims: 0
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |