US2873580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable gripper and locking assembly for land and marine supporting columns
Assignee: De Long Corp
•
Filing: 1953-09-29
•
Granted: 1959-02-17
•
Expires: 1973-09-29
Abstract
No abstract record available.
Inventors
- 👤 George E Suderow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:48
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/04; E02B17/08; E02B17/0836; E04; E04G; E04G11/00; E04G11/06; E04G11/20; E04G11/22; E04G11/24; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44068; Y10T279/00; Y10T279/12; Y10T279/1274; Y10T279/1283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1111535A
Cited
US1676275A
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US2042353A
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US2237387A
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US2352370A
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US2534527A
Cited
US2592448A
Cited
US2589146A
Cited
US2660440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |