US2725012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor-pump unit
Assignee: McGraw Electric Co
•
Filing: 1952-03-22
•
Granted: 1955-11-29
•
Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 John J Zimsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:34
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1269909A
Cited
GB139277A
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US1347732A
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US1543502A
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US2120914A
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US2246777A
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US2318786A
Cited
US2568548A
Cited
GB585542A
Cited
US2518597A
Cited
US2517233A
Cited
US2649048A
Cited
US2649049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |