US2698919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric generating system for bulldozing tractors
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1949-08-22
•
Granted: 1955-01-04
•
Expires: 1969-08-22
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
- 👤 Roe Charles Conan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:05
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US865819A
Cited
US905508A
Cited
US1139201A
Cited
US1258116A
Cited
US1391529A
Cited
US2058561A
Cited
US2169606A
Cited
US2239822A
Cited
US2258813A
Cited
US2393621A
Cited
US2404760A
Cited
US2438534A
Cited
US2484262A
Cited
US2498967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |