Patent US2779948A successfully refreshed from Google Patents.
US2779948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposal unit
Assignee: Individual
•
Filing: 1954-06-01
•
Granted: 1957-02-05
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Leon E Houle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:00
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650291A
Cited
US1996325A
Cited
US2402170A
Cited
DE751555C
Cited
US2414964A
Cited
US2519198A
Cited
US2428420A
Cited
US2435845A
Cited
US2715735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |