US2428284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand marking apparatus
Assignee: AT&T Inc
•
Filing: 1943-08-18
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Granted: 1947-09-30
•
Expires: 1963-08-18
Abstract
No abstract record available.
Inventors
- 👤 Christopher J Krogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/34; H01B13/345; B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0405; B41; B41F; B41F17/00; B41F17/08; B41F17/10; D; D06; D06B; D06B11/00; D06B11/002; D06B11/0023; Y; Y10; Y10S; Y10S101/00; Y10S101/39; Y10S118/00; Y10S118/21
Claims Analysis
Total Claims: 0
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US338096A
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US1263009A
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US2274432A
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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) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |