US2551110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable form for lining irrigation ditches
Assignee: Individual
•
Filing: 1947-12-26
•
Granted: 1951-05-01
•
Expires: 1967-12-26
Abstract
No abstract record available.
Inventors
- 👤 Fuller Revilo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:42
CPC Classifications
E; E02; E02B; E02B5/00; E02B5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US992649A
Cited
US2032736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |