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US1238084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for extracting oils and the like.
Assignee: Individual
•
Filing: 1914-12-24
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Granted: 1917-08-28
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Expires: 1934-12-24
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Barstow
- 👤 Thomas Griswold Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:42
CPC Classifications
B; B01; B01F; B01F21/00; B01F21/20; B01J; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00079
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) | 1920-08-27 | 1921-02-26 | 1921-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-08-27 | 1925-02-26 | 1925-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-08-27 | 1929-02-26 | 1929-08-28 | $7700.00 | Window Closed / Lapsed |