US3433968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive indexing cranking system
Assignee: Caterpillar Inc
•
Filing: 1966-11-18
•
Granted: 1969-03-18
•
Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Robert H Broyden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:41
CPC Classifications
F; F02; F02N; F02N11/00; F02N11/08; F02N11/0851; F02N15/00; F02N15/02; F02N15/04; F02N15/06; F02N15/067
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1079725A
Cited
US1143194A
Cited
US1274575A
Cited
US1246207A
Cited
US1683280A
Cited
US3037124A
Cited
US2925810A
Cited
US3223863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |