US2697496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber valve construction
Assignee: PATENT DEV Co
•
Filing: 1950-03-14
•
Granted: 1954-12-21
•
Expires: 1970-03-14
Abstract
No abstract record available.
Inventors
- 👤 Brouwer D Mcintyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:09
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/34; F16F9/348; F16F9/3484; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7774; Y10T137/7775; Y10T137/7779
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1320060A
Cited
US1865460A
Cited
US2159289A
Cited
US2239112A
Cited
US2191636A
Cited
US2240644A
Cited
US2320314A
Cited
US2352401A
Cited
US2481088A
Cited
US2467098A
Cited
US2458157A
Cited
US2565617A
Cited
US2527034A
Cited
US2551749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |