US2641911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaster
Assignee: RAYMOND ENGINEERING LAB Inc
•
Filing: 1951-11-29
•
Granted: 1953-06-16
•
Expires: 1971-11-29
Abstract
No abstract record available.
Inventors
- 👤 Grace L Raymond
- 👤 Horace H Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:32
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE8647C
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US508140A
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US652268A
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US715828A
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FR578281A
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US1683977A
Cited
FR725715A
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US2041563A
Cited
US2113888A
Cited
US2345784A
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US2561127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |