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US2540516A
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US
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Assignee: Individual
•
Filing: 1948-04-05
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Granted: 1951-02-06
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Expires: 1968-04-05
Abstract
No abstract record available.
Inventors
- 👤 Mark A Glasco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
A; A41; A41F; A41F11/00; A41F11/02; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3401; Y10T24/3413; Y10T24/44; Y10T24/44274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1475868A
Cited
US1183903A
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US1426635A
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US1426636A
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US1832548A
Cited
GB457847A
Cited
US2043751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |