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US2739005A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1953-02-13
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Granted: 1956-03-20
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Expires: 1973-02-13
Abstract
No abstract record available.
Inventors
- 👤 Naffziger Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:08
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/44; E05C17/443; Y; Y10; Y10S; Y10S292/00; Y10S292/15; Y10T; Y10T292/00; Y10T292/65; Y10T292/67
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194628A
Cited
US726577A
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US885116A
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US958959A
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US1163478A
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US1334399A
Cited
US1858711A
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US2595709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |