US2462669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for photocatalytic reactions
Assignee: Colgate Palmolive Co
•
Filing: 1942-02-03
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Granted: 1949-02-22
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Expires: 1962-02-03
Abstract
No abstract record available.
Inventors
- 👤 Percy Joseph Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:24
CPC Classifications
C; C07; C07C; C07C309/00; B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088; B01J19/12; B01J19/122; B01J19/123; B01J19/124; B01J19/30; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/18; B01J2219/00; B01J2219/18; B01J2219/185; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1943; B01J2219/30; B01J2219/302; B01J2219/30207; B01J2219/30211; B01J2219/304; B01J2219/30433
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |