US2615914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyl carbonates of lactates
Assignee: Individual
•
Filing: 1949-02-08
•
Granted: 1952-10-28
•
Expires: 1969-02-08
Abstract
No abstract record available.
Inventors
- 👤 Chessie E Rehberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A PLASTICIZER OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A PLASTICIZER OF THE FORMULA:
References Cited (Backward Citations)
US2025957A
Cited
US2126510A
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US2312963A
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US2369985A
Cited
US2370567A
Cited
US2379250A
Cited
US2453264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |