US2637249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp
Assignee: Individual
•
Filing: 1949-07-09
•
Granted: 1953-05-05
•
Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 Henry F Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:01
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE160095C
Cited
USRE22641E
Cited
US664688A
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US733044A
Cited
GB190705432A
Cited
US999978A
Cited
US1370683A
Cited
US1371617A
Cited
US1938337A
Cited
GB396691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |