US2024727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covering for curing concrete
Assignee: Paraffine Companies Inc
•
Filing: 1931-05-01
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Granted: 1935-12-17
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Expires: 1951-05-01
Abstract
No abstract record available.
Inventors
- 👤 Finley Dozier
- 👤 William R Greig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:47
CPC Classifications
D; D21; D21J; D21J1/00; D21J1/16; C; C04; C04B; C04B40/00; C04B40/04; E; E04; E04G; E04G21/00; E04G21/24; E04G21/246; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10S428/00; Y10S428/906; Y10S52/00; Y10S52/07; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249923; Y10T428/249953; Y10T428/249967; Y10T428/249968; Y10T428/31504; Y10T428/31678; Y10T428/31717; Y10T428/31815; Y10T428/31819; Y10T428/31823; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2221; Y10T442/2484; Y10T442/50; Y10T442/59
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) | 1938-12-16 | 1939-06-17 | 1939-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-12-16 | 1943-06-17 | 1943-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-12-16 | 1947-06-17 | 1947-12-17 | $7700.00 | Window Closed / Lapsed |