Patent US1840186A successfully refreshed from Google Patents.
US1840186A
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Method of controlling reactions
Assignee: Bakelite Corp
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Filing: 1928-05-12
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Granted: 1932-01-05
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Expires: 1948-05-12
Abstract
No abstract record available.
Inventors
- 👤 Robert P Courtney
- 👤 Virgil E Meharg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:10
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J8/067; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00053; B01J2208/00079; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/0053
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) | 1935-01-04 | 1935-07-06 | 1936-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-04 | 1939-07-06 | 1940-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-04 | 1943-07-06 | 1944-01-05 | $7700.00 | Window Closed / Lapsed |