US2577635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric vinylidene chloride compositions
Assignee: Dow Chemical Co
•
Filing: 1949-03-02
•
Granted: 1951-12-04
•
Expires: 1969-03-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene D Serdynsky
- 👤 James S Gowing
- 👤 Ralph M Wiley
- 👤 Carl B Havens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A COMPOSITION OF MATTER HAVING LITTLE TENDENCY TO ACQUIRE AND RETAIN A CHARGE OF STATIC ELECTRICITY, THE ESSENTIAL INGREDIENTS OF WHICH ARE A POLYMER IN WHICH VINYLIDENE CHLORIDE PREDOMINATES AND FROM 0.5 TO 5 PER CENT OF THE WEIGHT OF SUCH POLYMER OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF THE PENTA-ALKYL TRIPOLYPHOSPHATES AND THE HEXA-ALKYL TETRAPOLYPHOSPHATES WHEREIN THE ALKYL GROUPS CONTAIN FROM 3 TO 8 CARBON ATOMS.
Claim 2
Dependent Claim
69 words
A COMPOSITION OF MATTER HAVING LITTLE TENDENCY TO ACQUIRE AND RETAIN A CHARGE OF STATIC ELECTRICITY, THE ESSENTIAL INGREDIENTS OF WHICH ARE A POLYMER IN WHICH VINYLIDENE CHLORIDE PREDOMINATES AND FROM 0.5 TO 5 PER CENT OF THE WEIGHT OF SUCH POLYMER OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF THE PENTA-ALKYL TRIPOLYPHOSPHATES AND THE HEXA-ALKYL TETRAPOLYPHOSPHATES WHEREIN THE ALKYL GROUPS CONTAIN FROM 3 TO 8 CARBON ATOMS.
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) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |