US3514231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating pump for marine toilets
Assignee: Individual
•
Filing: 1967-12-01
•
Granted: 1970-05-26
•
Expires: 1987-12-01
Abstract
No abstract record available.
Inventors
- 👤 Perry Belden
- 👤 Katherine Arnel Belden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:39
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/01; F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/106; F04B53/1062; F04B9/00; F04B9/14; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB457220A
Cited
US112060A
Cited
US231522A
Cited
US254227A
Cited
US289210A
Cited
US338609A
Cited
US2336640A
Cited
US3154796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |