US2786284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marsh ditcher
Assignee: ASSOCIATED PIPE LINE CONTRACTO
•
Filing: 1953-10-30
•
Granted: 1957-03-26
•
Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 Robert E Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:34
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/28; E02F5/282; E02F3/00; E02F3/04; E02F3/06; E02F9/00; E02F9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE69152C
Cited
US363560A
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US789947A
Cited
US1171771A
Cited
GB289274A
Cited
US2079595A
Cited
US2136982A
Cited
US2430048A
Cited
US2379570A
Cited
US2384441A
Cited
US2662614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |