Patent US2551294A successfully refreshed from Google Patents.
US2551294A
Expired / Lapsed
US
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Telescoping tube construction
Assignee: Individual
•
Filing: 1946-08-23
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Granted: 1951-05-01
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Expires: 1966-08-23
Abstract
No abstract record available.
Inventors
- 👤 Frank J Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:07
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; Y; Y10; Y10T; Y10T403/00; Y10T403/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US596080A
Cited
US1309060A
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US641895A
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US1097340A
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US1357714A
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US1693848A
Cited
US1750273A
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US2293800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |