US3012549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion device
Assignee: Individual
•
Filing: 1957-01-30
•
Granted: 1961-12-12
•
Expires: 1977-01-30
Abstract
No abstract record available.
Inventors
- 👤 Francis N Bard
- 👤 Victor W Breitenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/10; E; E21; E21B; E21B1/00; E21B1/12; E21B1/24; E21B1/30; E21B1/32; E21B1/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1085541A
Cited
US1463595A
Cited
US1813513A
Cited
US1868627A
Cited
US2031535A
Cited
US2101608A
Cited
GB447254A
Cited
FR804653A
Cited
CH209207A
Cited
FR897218A
Cited
US2456267A
Cited
US2755783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |