US2550730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diestock and process of making same
Assignee: Masonite Corp
•
Filing: 1947-01-20
•
Granted: 1951-05-01
•
Expires: 1967-01-20
Abstract
No abstract record available.
Inventors
- 👤 Charles F Story
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1216055A
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US1923105A
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US1937703A
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US2011130A
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US2120137A
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US2080078A
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DE692175C
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US2219381A
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US2347697A
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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) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |