Patent DE656594C successfully refreshed from Google Patents.
US2877205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymethyl methacrylate polymer in admixture with 2 butene 1, 4 diol dimethacrylate
Assignee: H D Justi & Son Inc
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Filing: 1954-03-16
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Granted: 1959-03-10
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Expires: 1974-03-16
Abstract
No abstract record available.
Inventors
- 👤 Lal Joginder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:18
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A COMPOSITION OF MATTER COMPRISING A POLYMETHYL METHACRYLATE IN ADMIXTURE WITH THE DIMETHACRYLATE OF 2 BUTENE 184 DIOL.
Claim 2
Dependent Claim
18 words
A COMPOSITION OF MATTER COMPRISING A POLYMETHYL METHACRYLATE IN ADMIXTURE WITH THE DIMETHACRYLATE OF 2 BUTENE 184 DIOL.
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |