US3409567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closures for containers
Assignee: WR Grace and Co
•
Filing: 1964-11-20
•
Granted: 1968-11-05
•
Expires: 1984-11-20
Abstract
No abstract record available.
Inventors
- 👤 Dinsdale Raymond
- 👤 Day Kenneth John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:54
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/02; C08L; C08L21/00; C08L21/02; C09; C09K; C09K3/00; C09K3/10; C08J2321/00; C09K2200/00; C09K2200/02; C09K2200/0217; C09K2200/023; C09K2200/0239; C09K2200/0243; C09K2200/0252; C09K2200/04; C09K2200/0447; C09K2200/0458; C09K2200/06; C09K2200/0607; C09K2200/0612; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1924170A
Cited
US2933467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |