US2711741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular file
Assignee: Individual
•
Filing: 1949-03-09
•
Granted: 1955-06-28
•
Expires: 1969-03-09
Abstract
No abstract record available.
Inventors
- 👤 Wassell Frank Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:20
CPC Classifications
A; A47; A47B; A47B63/00; A47B63/06; A47B63/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1336584A
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US1575021A
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US1616623A
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US1611179A
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US1707917A
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US2281463A
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US2383944A
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US2424144A
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US2411950A
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US2493538A
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US2599802A
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US2532364A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |