US2412469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triethylene glycol diheptoate
Assignee: Kay-Fries Chemicals Inc
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Filing: 1943-11-16
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Granted: 1946-12-10
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Expires: 1963-11-16
Abstract
No abstract record available.
Inventors
- 👤 Nicholl Leonard
- 👤 William P Bitler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:03
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/03; C07C67/44; C07C69/00; C07C69/02; C07C69/22; C07C69/28; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; B; B01; B01J; B01J2531/00; B01J2531/30; B01J2531/31; B01J31/00; B01J31/02; B01J31/0201; B01J31/0211; B01J31/0212
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) | 1949-12-09 | 1950-06-10 | 1950-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-09 | 1954-06-10 | 1954-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-09 | 1958-06-10 | 1958-12-10 | $7700.00 | Window Closed / Lapsed |