US3004175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable power system
Assignee: Individual
•
Filing: 1958-08-04
•
Granted: 1961-10-10
•
Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Hubert L Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:46
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/30; E04G7/302; E04G7/303; E04G7/305; H; H02; H02G; H02G3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US426127A
Cited
US473932A
Cited
US2226332A
Cited
US2390192A
Cited
GB618701A
Cited
US2713082A
Cited
US2771501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |