US2561572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line holder
Assignee: Individual
•
Filing: 1947-12-08
•
Granted: 1951-07-24
•
Expires: 1967-12-08
Abstract
No abstract record available.
Inventors
- 👤 Leroy R Herrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:29
CPC Classifications
A; A01; A01K; A01K87/00; A01K87/04; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/3918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US426731A
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US540361A
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US731352A
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US974667A
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US1044302A
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US1284918A
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US2163695A
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US2460916A
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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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |