US2865883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride with manganous pyrophosphate
Assignee: EIDP Inc
•
Filing: 1955-06-29
•
Granted: 1958-12-23
•
Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jackson Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:50
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A POLYMERIC VINYL CHLORIDE COMPOSITION COMPRISING A POLYMERIC VINYL CHLORIDE AND A MANGANOUS PYROPHOSPHATE IN A MINOR AMOUNT SUFFICIENT TO STABILIZE SAID POLYMERIC VINYL CHLORIDE AGAINST DETERIORATION.
Claim 2
Dependent Claim
27 words
A POLYMERIC VINYL CHLORIDE COMPOSITION COMPRISING A POLYMERIC VINYL CHLORIDE AND A MANGANOUS PYROPHOSPHATE IN A MINOR AMOUNT SUFFICIENT TO STABILIZE SAID POLYMERIC VINYL CHLORIDE AGAINST DETERIORATION.
References Cited (Backward Citations)
US2140518A
Cited
US2075543A
Cited
US2477658A
Cited
US2507142A
Cited
US2597987A
Cited
US2604459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |