US3433763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dihydrocarbyl tin maleic acid esters and their use as pvc stabilizers
Assignee: Nitto Kasei Co Ltd
•
Filing: 1965-11-05
•
Granted: 1969-03-18
•
Expires: 1985-11-05
Abstract
No abstract record available.
Inventors
- 👤 Kozaburo Suzuki
- 👤 Toshio Seki
- 👤 Yohei Kawakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C07; C07F; C07F7/00; C07F7/22; C07F7/2224
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2830067A
Cited
NL87074C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |