US3047325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door control mechanisms
Assignee: Individual
•
Filing: 1959-07-02
•
Granted: 1962-07-31
•
Expires: 1979-07-02
Abstract
No abstract record available.
Inventors
- 👤 Vito Angelo R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:11
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; Y; Y10; Y10S; Y10S292/00; Y10S292/24; Y10S292/41; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/306; Y10T292/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2665159A
Cited
US2683050A
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US2893774A
Cited
US2814193A
Cited
US2916318A
Cited
US2914352A
Cited
US2914353A
Cited
US2911248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |