US2492449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pressure signaling device for molding apparatus
Assignee: Individual
•
Filing: 1947-02-01
•
Granted: 1949-12-27
•
Expires: 1967-02-01
Abstract
No abstract record available.
Inventors
- 👤 Tuller John
- 👤 Tuller Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:56
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0662; B29C; B29C35/00; B29C35/02; B29C35/0227
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US423385A
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US499254A
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US872039A
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US952070A
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US1024061A
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US1035572A
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US1224952A
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US1656689A
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US1507648A
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US2255333A
Cited
US2321631A
Cited
US2323575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |