US3455249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant lift jacking device
Assignee: TAMPER Inc
•
Filing: 1966-03-21
•
Granted: 1969-07-15
•
Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 John Kenneth Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/17; E01B2203/00; E01B2203/10; E01B2203/12; E01B2203/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2478535A
Cited
FR1128627A
Cited
US3153390A
Cited
US3301198A
Cited
US3363582A
Cited
US3274952A
Cited
FR1419536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |