Patent US2523508A successfully refreshed from Google Patents.
US2523508A
Expired / Lapsed
US
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Three-dimensional model
Assignee: Individual
•
Filing: 1945-05-07
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Granted: 1950-09-26
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Expires: 1965-05-07
Abstract
No abstract record available.
Inventors
- 👤 Lowell A Ledgett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:27
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/044; E; E04; E04H; E04H5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US311793A
Cited
US1329850A
Cited
US1488872A
Cited
US1912380A
Cited
US1801724A
Cited
US1981646A
Cited
GB422652A
Cited
US2127047A
Cited
US2284458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |