Patent US1604576A successfully refreshed from Google Patents.
US1604576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production by carbonation and the addition of sulphates of plastic materials having an initial quick set
Assignee: National Lime Association
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Filing: 1923-07-25
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Granted: 1926-10-26
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Expires: 1943-07-25
Abstract
No abstract record available.
Inventors
- 👤 Frank C Mathers
- 👤 Russel L Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:07
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/10; C04B2111/00; C04B2111/00474; C04B2111/00482
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) | 1929-10-25 | 1930-04-26 | 1930-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-25 | 1934-04-26 | 1934-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-25 | 1938-04-26 | 1938-10-26 | $7700.00 | Window Closed / Lapsed |