US3085513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable immersion electric liquid pump
Assignee: March Manufacturing Co
•
Filing: 1961-07-31
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Granted: 1963-04-16
•
Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick N Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/086; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2971467A
Cited
US3028251A
Cited
US2974059A
Cited
US2978659A
Cited
US2997776A
Cited
US2981196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |