US3377997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stroke cycle engine
Assignee: KA TEE RES CORP
•
Filing: 1966-04-21
•
Granted: 1968-04-16
•
Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Van P Combs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:28
CPC Classifications
F; F01; F01B; F01B9/00; F01B9/02; F01B9/023; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316437A
Cited
US1043254A
Cited
US1409518A
Cited
US1810688A
Cited
US2025699A
Cited
US2406404A
Cited
US3119462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |