US2850781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device
Assignee: AIRTEK DYNAMICS Inc
•
Filing: 1953-07-20
•
Granted: 1958-09-09
•
Expires: 1973-07-20
Abstract
No abstract record available.
Inventors
- 👤 Frank A Pachmayr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:44
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/10; Y; Y10; Y10S; Y10S411/00; Y10S411/999
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2095271A
Cited
US2392718A
Cited
US2442064A
Cited
US2410441A
Cited
US2382973A
Cited
US2416873A
Cited
US2542968A
Cited
US2575311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |