US2677914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy bridge construction
Assignee: Individual
•
Filing: 1951-02-08
•
Granted: 1954-05-11
•
Expires: 1971-02-08
Abstract
No abstract record available.
Inventors
- 👤 Douglas P Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:56
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US249448A
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US852970A
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US999466A
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US1367937A
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US1526359A
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US2179005A
Cited
US2507354A
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US2558591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |