US2477043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Warner Manufacturing Co
•
Filing: 1947-12-11
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Granted: 1949-07-26
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Expires: 1967-12-11
Abstract
No abstract record available.
Inventors
- 👤 Carl E Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2205; F04D29/2222; F04D29/2233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1337659A
Cited
US2013455A
Cited
US2074387A
Cited
US2203958A
Cited
US2240356A
Cited
US2390299A
Cited
US2257678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |