US2927435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offshore platforms
Assignee: Raymond International Inc
•
Filing: 1955-09-23
•
Granted: 1960-03-08
•
Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 Upson Maxwell Mayhew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:43
CPC Classifications
E; E02; E02B; E02B17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1300606A
Cited
US2736172A
Cited
FR768943A
Cited
US2435345A
Cited
US2420677A
Cited
US2429952A
Cited
US2574140A
Cited
US2592448A
Cited
US2653451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |