Patent US2638231A successfully refreshed from Google Patents.
US2638231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothesline pole
Assignee: Individual
•
Filing: 1948-12-07
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Granted: 1953-05-12
•
Expires: 1968-12-07
Abstract
No abstract record available.
Inventors
- 👤 Tardie Norman
- 👤 Anna C Tardie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:21
CPC Classifications
D; D06; D06F; D06F53/00; D06F53/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1258040A
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US1729958A
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US1903907A
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US2293251A
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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) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |