US2632478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1948-07-01
•
Granted: 1953-03-24
•
Expires: 1968-07-01
Abstract
No abstract record available.
Inventors
- 👤 Howard W Ronfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
B; B65; B65D; B65D59/00; F; F16; F16L; F16L57/00; F16L57/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US509115A
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US966610A
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US1302141A
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US1584313A
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US1421420A
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GB232941A
Cited
US1771522A
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US1776528A
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US1885375A
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US1961121A
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US2055646A
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US2204130A
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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) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |