Patent US2683705A successfully refreshed from Google Patents.
US2683705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of alpha-chloroacrylates
Assignee: GAF Chemicals Corp
•
Filing: 1952-05-16
•
Granted: 1954-07-13
•
Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Harry D Anspon
- 👤 Frank E Pschorr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:33
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A PROCESS COMPRISING POLYMERIZING AN ACHLOROACRYLIC ACID ESTER IN THE PRESENCE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
20 words
A PROCESS COMPRISING POLYMERIZING AN ACHLOROACRYLIC ACID ESTER IN THE PRESENCE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF
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) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |