Patent JPS53126078A successfully refreshed from Google Patents.
US2687430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxyalkylene derivatives of
Assignee: —
•
Filing: —
•
Granted: 1954-08-24
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Expires: 1971-08-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/28; C07C43/00; C07C43/02; C07C43/20; C07C43/23; C07C69/00; C07C69/02; C07C69/22; C07C69/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
A CHEMICAL COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |