US2587805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arsenic modified polysulfide plastics
Assignee: Individual
•
Filing: 1948-12-04
•
Granted: 1952-03-04
•
Expires: 1968-12-04
Abstract
No abstract record available.
Inventors
- 👤 Akobjanoff Lev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
C; C08; C08G; C08G79/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
7 words
A POLYMERIC SUBSTANCE HAVING THE REPEATING UNIT
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) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |