US2637138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doll stage construction
Assignee: Individual
•
Filing: 1951-02-20
•
Granted: 1953-05-05
•
Expires: 1971-02-20
Abstract
No abstract record available.
Inventors
- 👤 Harold C Doran
- 👤 Doran Elizabeth Patricia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/26; A63J; A63J19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1619719A
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US961675A
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US1523282A
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US1874819A
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US2101764A
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US2086728A
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US2249454A
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US2399041A
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US2427442A
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US2525738A
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |