US2950141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel latch
Assignee: AT&T Inc
•
Filing: 1957-05-28
•
Granted: 1960-08-23
•
Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Herman H Koff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B13/0808; E; E05; E05B; E05B65/00; E05B65/006; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE58520C
Cited
US1027397A
Cited
US1327011A
Cited
US1797765A
Cited
US1957003A
Cited
US2501722A
Cited
US2776774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |