US1535860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor for internal-combustion engines
Assignee: Rolls Royce PLC
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Filing: 1924-05-14
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Granted: 1925-04-28
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Expires: 1944-05-14
Abstract
No abstract record available.
Inventors
- 👤 Royce Frederick Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:53
CPC Classifications
F; F02; F02M; F02M9/00; F02M9/12; F02M9/127; F02M9/1275; F02M1/00; F02M7/00; F02M7/12; F02M7/14; F02M7/16; F02M7/17; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4361; F02M2700/4364; F02M2700/4366; Y; Y10; Y10S; Y10S261/00; Y10S261/23; Y10S261/38; Y10S261/52; Y10S261/53
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) | 1928-04-27 | 1928-10-27 | 1929-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-04-27 | 1932-10-27 | 1933-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-04-27 | 1936-10-27 | 1937-04-28 | $7700.00 | Window Closed / Lapsed |