US2455890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polystyrene-mineral oil extract plastic composition
Assignee: Anglo Iranian Oil Co Ltd
•
Filing: 1944-01-27
•
Granted: 1948-12-07
•
Expires: 1964-01-27
Abstract
No abstract record available.
Inventors
- 👤 Fawcett Eric William Musther
- 👤 Mulhern Norah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:13
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/442; C; C08; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1792102A
Cited
US1836021A
Cited
US2185952A
Cited
US2180367A
Cited
US2210434A
Cited
US2272996A
Cited
US2217918A
Cited
US2217988A
Cited
GB514156A
Cited
US2285562A
Cited
US2350007A
Cited
US2334582A
Cited
US2374067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-07 | 1952-06-07 | 1952-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-07 | 1956-06-07 | 1956-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-07 | 1960-06-07 | 1960-12-07 | $7700.00 | Window Closed / Lapsed |