US2954901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite package
Assignee: Hedwin Corp
•
Filing: 1956-10-29
•
Granted: 1960-10-04
•
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 22:33
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/04; B65D77/06; B65D77/062; B65D5/00; B65D5/42; B65D5/70; B65D77/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020536A
Cited
US1253436A
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US2214944A
Cited
US2293182A
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US2446308A
Cited
US2382536A
Cited
US2555526A
Cited
US2554050A
Cited
US2686000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |