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US2807494A
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Assignee: Individual
•
Filing: 1956-02-13
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Granted: 1957-09-24
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph F Bulfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:54
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/26; E04H17/261; E04H17/265; A; A01; A01G; A01G17/00; A01G17/04; A01G17/14; A01G17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1627733A
Cited
US2634157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |