Patent NL62701C successfully refreshed from Google Patents.
Patent US2806419A successfully refreshed from Google Patents.
US2806419A
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Assignee: Individual
•
Filing: 1955-06-24
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Granted: 1957-09-17
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Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J Artis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:02
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/03; E04D13/0325; F; F24; F24F; F24F7/00; F24F7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US579309A
Cited
US1312586A
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US863059A
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US925251A
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US1129053A
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GB378358A
Cited
US2628551A
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US2638835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |