US2444978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1944-11-08
•
Granted: 1948-07-13
•
Expires: 1964-11-08
Abstract
No abstract record available.
Inventors
- 👤 Giles B Cooke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:02
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K2200/00; C09K2200/02; C09K2200/0243; C09K2200/06; C09K2200/0687; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US948845A
Cited
US1904445A
Cited
AT149518B
Cited
US2138419A
Cited
US2238681A
Cited
US2389761A
Cited
US2392238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |