US2531657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas generator
Assignee: Allied Process Corp
•
Filing: 1945-02-06
•
Granted: 1950-11-28
•
Expires: 1965-02-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry Tobler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:15
CPC Classifications
B; B01; B01J; B01J7/00; B01J7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US515500A
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AT718B
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US726139A
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US834831A
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US978641A
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US1029692A
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US1537519A
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FR32626E
Cited
US1684979A
Cited
US2211430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |