Patent US2403562A successfully refreshed from Google Patents.
US1554914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distributor
Assignee: Individual
•
Filing: 1925-01-12
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Granted: 1925-09-22
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Expires: 1945-01-12
Abstract
No abstract record available.
Inventors
- 👤 Ervin H Guthier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/06; F26B9/066
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) | 1928-09-21 | 1929-03-23 | 1929-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-21 | 1933-03-23 | 1933-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-21 | 1937-03-23 | 1937-09-22 | $7700.00 | Window Closed / Lapsed |