US3547474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boot seal
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1969-07-15
•
Granted: 1970-12-15
•
Expires: 1989-07-15
Abstract
No abstract record available.
Inventors
- 👤 John B Colletti
- 👤 Peter James Dumeah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:51
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0666; F16C11/0671; F16B; F16B2200/00; F16B2200/60; F16C11/0619; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32549; Y10T403/32557; Y10T403/32565; Y10T403/32573; Y10T403/32606; Y10T403/32631; Y10T403/32681; Y10T403/32704
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |