US1830253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition material
Assignee: Amcol International Corp
•
Filing: 1931-01-03
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Granted: 1931-11-03
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Expires: 1951-01-03
Abstract
No abstract record available.
Inventors
- 👤 Bechtner Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:26
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/001; C04B28/02; C04B28/10; C04B28/105; C04B2111/00; C04B2111/20; C04B2111/2092; C04B2111/28; C04B2111/52; Y; Y10; Y10S; Y10S106/00; Y10S106/03; Y10S106/04
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) | 1934-11-02 | 1935-05-04 | 1935-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-02 | 1939-05-04 | 1939-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-02 | 1943-05-04 | 1943-11-03 | $7700.00 | Window Closed / Lapsed |