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US2489470A
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Assignee: LEE A FORDON
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Filing: 1946-10-03
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Granted: 1949-11-29
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Expires: 1966-10-03
Abstract
No abstract record available.
Inventors
- 👤 Fred J Ullrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:06
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/06; B65D21/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1139536A
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US1164364A
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US1291693A
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US1137759A
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US1219969A
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US1420992A
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US1689217A
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US2105179A
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US2241707A
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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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |