US2803295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starting aid for internal combustion engines
Assignee: Individual
•
Filing: 1954-06-28
•
Granted: 1957-08-20
•
Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Ambrose
- 👤 John W Ambrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:46
CPC Classifications
F; F02; F02P; F02P19/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1051122A
Cited
US1334446A
Cited
US1625312A
Cited
US1625313A
Cited
US1453669A
Cited
US1456980A
Cited
US1728027A
Cited
GB279834A
Cited
US2671438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |