US2950029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container
Assignee: Hedwin Corp
•
Filing: 1956-10-29
•
Granted: 1960-08-23
•
Expires: 1976-10-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Winstead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:29
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/38; B65D25/40; B65D25/42; B65D25/46; B65D25/465; B65D11/00; B65D11/10; B65D21/00; B65D21/02; B65D21/0209; B65D47/00; B65D47/04; B65D47/06; B65D47/12; B65D47/122; B65D47/123; B65D47/14; B65D47/141; Y; Y10; Y10S; Y10S215/00; Y10S215/90; Y10S383/00; Y10S383/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470838A
Cited
US2077341A
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US2043924A
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US2337730A
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US2574931A
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DE812584C
Cited
US2674287A
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US2773631A
Cited
US2730150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |