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Patent US2477509A successfully refreshed from Google Patents.
US2477509A
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Assignee: LEONARD M WELLS Inc
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Filing: 1947-07-22
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Granted: 1949-07-26
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Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 Leslie D Burgesser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:33
CPC Classifications
A; A47; A47G; A47G7/00; A47G7/02; A47G7/04; A47G7/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US124207A
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US409925A
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US477355A
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US506530A
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US581681A
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US1305434A
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US1049913A
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US1179043A
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US1955476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |