US1371444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for air-delivery cooler for turbo-compressors
Assignee: Individual
•
Filing: 1918-05-14
•
Granted: 1921-03-15
•
Expires: 1938-05-14
Abstract
No abstract record available.
Inventors
- 👤 Earl H Sherbondy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:33
CPC Classifications
F; F02; F02B; F02B29/00; F02B29/04; F02B29/0493; F02B29/0406; F02B29/0418; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1924-03-14 | 1924-09-13 | 1925-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-14 | 1928-09-13 | 1929-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-14 | 1932-09-13 | 1933-03-15 | $7700.00 | Window Closed / Lapsed |