US2113445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold plug
Assignee: WHITACRE GREER FIREPROOFING Co
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Filing: 1937-07-21
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Granted: 1938-04-05
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Expires: 1957-07-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Estep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:32
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-04-04 | 1941-10-04 | 1942-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-04-04 | 1945-10-04 | 1946-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-04-04 | 1949-10-04 | 1950-04-05 | $7700.00 | Window Closed / Lapsed |