US2652592A
Expired / Lapsed
US
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Molding method and apparatus
Assignee: W and F Manufacturing Co Inc
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Filing: 1949-09-10
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Granted: 1953-09-22
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Expires: 1969-09-10
Abstract
No abstract record available.
Inventors
- 👤 Paul A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:03
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/24; B29C67/241; B22; B22C; B22C9/00; B22C9/02; B22C9/04; B22D; B22D19/00; B29C33/00; B29C33/005; B29C41/00; B29C41/02; B29C41/18; B29C41/22; B29C2791/00; B29C2791/001; B29C39/00; B29K; B29K2995/00; B29K2995/0018; B29K2995/002; B29K2995/0021; Y; Y10; Y10S; Y10S425/00; Y10S425/249
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |