US3443552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine,fuel supply system and process
Assignee: Individual
•
Filing: 1966-12-13
•
Granted: 1969-05-13
•
Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Von Seggern
- 👤 Henry E Von Seggern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:00
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/10; F02B19/1019; F02B19/108; F02B19/1085; F02B19/1023; F02B19/1028; F02M; F02M47/00; F02M47/04; F02M47/043; F02M71/00; F02M71/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1354786A
Cited
US1414384A
Cited
US1643396A
Cited
US2161743A
Cited
US2466321A
Cited
US2534346A
Cited
US2652039A
Cited
US2658487A
Cited
US2886023A
Cited
US2877754A
Cited
US2884913A
Cited
US2983268A
Cited
US3079901A
Cited
US3107656A
Cited
US3113561A
Cited
US3196859A
Cited
US3244159A
Cited
US3238930A
Cited
US3255739A
Cited
US3302627A
Cited
US3318292A
Cited
US3363611A
Cited
US3315650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |