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Patent US2723528A successfully refreshed from Google Patents.
US2723528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary power package
Assignee: —
•
Filing: —
•
Granted: 1955-11-15
•
Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:26
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/38; F02B; F02B71/00; F02B71/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1419267A
Cited
US1423330A
Cited
US1593768A
Cited
DE574766C
Cited
US2104914A
Cited
DE660503C
Cited
US2263705A
Cited
GB548727A
Cited
GB545048A
Cited
US2432177A
Cited
US2476857A
Cited
US2620627A
Cited
US2652781A
Cited
US2609661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |