US2353725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dihydroxy halogenated diphenyl methanes and process for making same
Assignee: BURTON T BUSH Inc
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Filing: 1941-07-26
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Granted: 1944-07-18
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Expires: 1961-07-26
Abstract
No abstract record available.
Inventors
- 👤 William S Gump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:44
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/24; C07C39/44; C07C37/00; C07C37/11; C07C37/115; C07C37/20; C07C37/64; C07C37/66; C07C39/367
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) | 1947-07-18 | 1948-01-17 | 1948-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-18 | 1952-01-17 | 1952-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-18 | 1956-01-17 | 1956-07-18 | $7700.00 | Window Closed / Lapsed |