US3072680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-epsilon-caprolactones
Assignee: Union Carbide Corp
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Filing: 1960-06-01
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Granted: 1963-01-08
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Expires: 1980-06-01
Abstract
No abstract record available.
Inventors
- 👤 Paul S Starcher
- 👤 Samuel W Tinsley
- 👤 Phillips Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:24
CPC Classifications
C; C07; C07D; C07D315/00; C07D313/00; C07D313/02; C07D313/04; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/625; C08G63/00; C08G63/02; C08G63/06; C08G63/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DILACTONE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A DILACTONE OF THE FORMULA:
References Cited (Backward Citations)
BE552726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |