Patent US3487952A successfully refreshed from Google Patents.
US3487952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material lift and press
Assignee: Individual
•
Filing: 1967-02-13
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Granted: 1970-01-06
•
Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Owens
- 👤 Pat Maher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:48
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/18; E04F21/1805; E04F21/1822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1442267A
Cited
US2828870A
Cited
US3058602A
Cited
US3089599A
Cited
US3181711A
Cited
FR1378978A
Cited
US3318465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |