US2900165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate valve and seal
Assignee: Parker Hannifin Corp
•
Filing: 1955-03-30
•
Granted: 1959-08-18
•
Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Everett H Badger
- 👤 Samuel D Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:12
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/521; F16K3/00; F16K3/02; F16K3/16; F16K3/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US356997A
Cited
US2732170A
Cited
US2390201A
Cited
US2603449A
Cited
GB669933A
Cited
US2701117A
Cited
US2718372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |