Patent US4123661A successfully refreshed from Google Patents.
US2776853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device
Assignee: FLETCHER AVIAT CORP
•
Filing: 1954-09-20
•
Granted: 1957-01-08
•
Expires: 1974-09-20
Abstract
No abstract record available.
Inventors
- 👤 Victor J Billstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:49
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/18; F16B2/185; F16J; F16J13/00; F16J13/02; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0946; Y10T292/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1439000A
Cited
US1951922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |