US2463147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chill coil anchor
Assignee: Individual
•
Filing: 1945-05-08
•
Granted: 1949-03-01
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Bumbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:57
CPC Classifications
B; B22; B22D; B22D15/00; B22D15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325749A
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US741412A
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US866446A
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US1446446A
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US1540551A
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US1552246A
Cited
US1819765A
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US1784346A
Cited
US1982565A
Cited
US2066205A
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US2266971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |