US1355099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a coal-tar product
Assignee: Barrett Co Inc
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Filing: 1919-10-27
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Granted: 1920-10-05
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Expires: 1939-10-27
Abstract
No abstract record available.
Inventors
- 👤 John M Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:03
CPC Classifications
C; C10; C10C; C10C1/00; C10C1/18; H; H01; H01B; H01B3/00; H01B3/18; H01B3/20; H01B3/22
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) | 1923-10-05 | 1924-04-05 | 1924-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-10-05 | 1928-04-05 | 1928-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-10-05 | 1932-04-05 | 1932-10-05 | $7700.00 | Window Closed / Lapsed |