US3027185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door control mechanism
Assignee: Individual
•
Filing: 1958-11-10
•
Granted: 1962-03-27
•
Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Allen
- 👤 Vito Angelo R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:59
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; Y; Y10; Y10S; Y10S292/00; Y10S292/23; Y10S292/41; Y10T; Y10T292/00; Y10T292/306; Y10T292/308; Y10T292/68; Y10T292/688; Y10T292/691
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731822A
Cited
US1219698A
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US2270559A
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US2242993A
Cited
US2374840A
Cited
US2683617A
Cited
US2629621A
Cited
US2811381A
Cited
US2646300A
Cited
US2796276A
Cited
US2931677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |