US3328491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uv light absorbing copolymers of acryloxymethyl benzoates and dihydroxybenzophenone derivatives
Assignee: Ingredion Inc
•
Filing: 1964-05-01
•
Granted: 1967-06-27
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Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Fertig Joseph
- 👤 Albert I Goldberg
- 👤 Skoultchi Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:43
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/16; C08L; C08L101/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A NOVEL POLYMERIC LIGHT ABSORBER COMPRISING A COPOLYMER OF: (A) AT LEAST ONE MONOMER CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
18 words
A NOVEL POLYMERIC LIGHT ABSORBER COMPRISING A COPOLYMER OF: (A) AT LEAST ONE MONOMER CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
US3186968A
Cited
US3162676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |