Patent US2452999A successfully refreshed from Google Patents.
US2452999A
Expired / Lapsed
US
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Method of making cellular thermoplastic receptacles
Assignee: Uniroyal Inc
•
Filing: 1944-06-28
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Granted: 1948-11-02
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Expires: 1964-06-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Daly
- 👤 John F Schott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/08; B29C51/002; B29C51/18; B29C51/26; B29C51/42; B29C51/427; B29C51/428; B29K; B29K2105/00; B29K2105/04
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |