US3518989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: GERDA A SEELER
•
Filing: 1966-02-14
•
Granted: 1970-07-07
•
Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Henry W Seeler
- 👤 Gerda A Seeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0048; A61M16/20; A61M16/208; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |