US2981349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shakers for packing material in containers
Assignee: H L STOKER CO
•
Filing: 1957-04-05
•
Granted: 1961-04-25
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:05
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/22; Y; Y10; Y10S; Y10S177/00; Y10S177/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1777224A
Cited
US1852376A
Cited
US2010220A
Cited
US2458228A
Cited
US2548222A
Cited
US2757894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |