US2845851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making anti-skid concrete road surfaces
Assignee: Reliance Steel Products Co
•
Filing: 1952-06-03
•
Granted: 1958-08-05
•
Expires: 1972-06-03
Abstract
No abstract record available.
Inventors
- 👤 Harry S Nagin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:13
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/08; E01C23/085; E01C23/088; B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/045; B28D1/048; E01C11/00; E01C11/24; E01C23/02; E01C23/028; E01C23/0885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1675198A
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US2131571A
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US2311891A
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US2515311A
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US2351755A
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US2502043A
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US2636425A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |