US2822670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated caisson jack assembly
Assignee: Delong Corp
•
Filing: 1953-09-02
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Granted: 1958-02-11
•
Expires: 1973-09-02
Abstract
No abstract record available.
Inventors
- 👤 George E Suderow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/04; E02B17/08; E02B17/0809; E02B17/0836; E02B17/0872; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44068; Y10T24/44573; Y10T24/4459; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US103899A
Cited
US1066436A
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US1063156A
Cited
US1460609A
Cited
US2540679A
Cited
US2589146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |