Patent US3198016A successfully refreshed from Google Patents.
US3198016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-held drain valve operating receptacle
Assignee: Individual
•
Filing: 1962-03-08
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Granted: 1965-08-03
•
Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Royal H Poorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:27
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/0408
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478698A
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US552771A
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US2655932A
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US2165860A
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US2392501A
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US2489746A
Cited
US2765958A
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US2857080A
Cited
US3043483A
Cited
US3011349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |