Patent US2729252A successfully refreshed from Google Patents.
US2729252A
Expired / Lapsed
US
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Straight beam adjustable jaw clamp
Assignee: Acrow Engineers Ltd
•
Filing: 1952-03-07
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Granted: 1956-01-03
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Expires: 1972-03-07
Abstract
No abstract record available.
Inventors
- 👤 Elliott John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:09
CPC Classifications
E; E04; E04G; E04G13/00; E04G13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1159184A
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US1180451A
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US1272259A
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FR555775A
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US1517308A
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US1606634A
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US1670339A
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US2043140A
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US2140669A
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US2637358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |