US3370827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve with interchangeable operator
Assignee: Individual
•
Filing: 1965-05-10
•
Granted: 1968-02-27
•
Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Stehlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:52
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/528; F16K31/5286; F16K31/12; F16K31/14; F16K31/143; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US363763A
Cited
CA575091A
Cited
US2320011A
Cited
US2530433A
Cited
US2782800A
Cited
US3062496A
Cited
FR1233159A
Cited
US3103341A
Cited
FR1284711A
Cited
US3226079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |