Patent US3898840A successfully refreshed from Google Patents.
US942852A
Expired / Lapsed
US
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Indurated product and method of preparing same.
Assignee: Individual
•
Filing: 1908-04-18
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Granted: 1909-12-07
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Expires: 1928-04-18
Abstract
No abstract record available.
Inventors
- 👤 Leo H Baekeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:01
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/02; B27K3/15; Y; Y10; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19916
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) | 1912-12-06 | 1913-06-07 | 1913-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-12-06 | 1917-06-07 | 1917-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-12-06 | 1921-06-07 | 1921-12-07 | $7700.00 | Window Closed / Lapsed |