US1722808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Stewart Warner Corp
•
Filing: 1925-11-19
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Granted: 1929-07-30
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Expires: 1945-11-19
Abstract
No abstract record available.
Inventors
- 👤 Fred W Manning
- 👤 Horace L Hirschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:45
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/09; B01D29/11; B01D29/13; B01D29/15; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/70; B01D29/96; B01D35/00; B01D35/14; B01D35/143; B01D35/18; B01D35/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-07-29 | 1933-01-28 | 1933-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-07-29 | 1937-01-28 | 1937-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-07-29 | 1941-01-28 | 1941-07-30 | $7700.00 | Window Closed / Lapsed |