US2359622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester-ethers of bis-phenols
Assignee: Dow Chemical Co
•
Filing: 1943-08-28
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Granted: 1944-10-03
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Expires: 1963-08-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Coleman
- 👤 Bartholdt C Hadler
- 👤 Robert W Sapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:15
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/205; C07C43/03; C07C43/14; C07C43/178; C07C43/1782; C07C43/23
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) | 1947-10-03 | 1948-04-03 | 1948-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-10-03 | 1952-04-03 | 1952-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-10-03 | 1956-04-03 | 1956-10-03 | $7700.00 | Window Closed / Lapsed |