Patent US3342903A successfully refreshed from Google Patents.
US3342903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pentaerythritol phosphoric acid esters
Assignee: Agfa Gevaert NV
•
Filing: 1964-06-22
•
Granted: 1967-09-19
•
Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Grabhofer Herbert
- 👤 Muller Herbert
- 👤 Posse Rolf-Fred
- 👤 Ulrich Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:56
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/10; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65746; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |