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
•
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 20:02
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/0408
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US478698A
Cited
US552771A
Cited
US2655932A
Cited
US2165860A
Cited
US2392501A
Cited
US2489746A
Cited
US2765958A
Cited
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 |