Patent US1268692A successfully refreshed from Google Patents.
US1268692A
Expired / Lapsed
US
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Preparation and production of catalysts.
Assignee: Procter and Gamble Co
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Filing: 1914-06-02
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Granted: 1918-06-04
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Expires: 1934-06-02
Abstract
No abstract record available.
Inventors
- 👤 James Dewar
- 👤 Adolf Liebmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:51
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8926
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) | 1921-06-03 | 1921-12-03 | 1922-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-06-03 | 1925-12-03 | 1926-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-06-03 | 1929-12-03 | 1930-06-04 | $7700.00 | Window Closed / Lapsed |