US1778238A
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Assignee: JAMES B TUTHILL
•
Filing: 1926-01-11
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Granted: 1930-10-14
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Expires: 1946-01-11
Abstract
No abstract record available.
Inventors
- 👤 Irven H Wilsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:25
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0403; F03C1/0435; F03C1/0438; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0408; F04B1/0443; F04B1/06; F04B1/07; F04B1/10; F04B1/113; F04B1/1133; F04B49/00; F04B49/12; F04B49/123; F04B49/128
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) | 1933-10-13 | 1934-04-14 | 1934-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-13 | 1938-04-14 | 1938-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-13 | 1942-04-14 | 1942-10-14 | $7700.00 | Window Closed / Lapsed |