US3512244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing bellows
Assignee: Bell Aerospace Corp
•
Filing: 1968-05-31
•
Granted: 1970-05-19
•
Expires: 1988-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jack D Dunbar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:35
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/24; F; F16; F16J; F16J3/00; F16J3/04; F16J3/047; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877; Y10T29/49885
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1717196A
Cited
US2154273A
Cited
US2279854A
Cited
US2534123A
Cited
US2534124A
Cited
US2569058A
Cited
US2965961A
Cited
US2818636A
Cited
US2822194A
Cited
US2788302A
Cited
US3040426A
Cited
US3025592A
Cited
US3262196A
Cited
US3140327A
Cited
US3202552A
Cited
US3153846A
Cited
US3233632A
Cited
US3241230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |