US2636291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digger for endless chain-type ditching machines
Assignee: Individual
•
Filing: 1948-02-06
•
Granted: 1953-04-28
•
Expires: 1968-02-06
Abstract
No abstract record available.
Inventors
- 👤 Reagle Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:58
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/08; E02F3/12; E02F3/14; E02F3/142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1308843A
Cited
US945335A
Cited
US1020296A
Cited
DE332855C
Cited
US1244785A
Cited
US1397679A
Cited
US1481602A
Cited
US1886382A
Cited
US1850364A
Cited
DE615492C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |