US2530218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window shade construction
Assignee: Safety Car Heating and Lighting Co
•
Filing: 1946-04-22
•
Granted: 1950-11-14
•
Expires: 1966-04-22
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Barrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:15
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/264; E06B2009/2643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US386961A
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US673779A
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US740929A
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US2088738A
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US2170877A
Cited
AT156727B
Cited
US2249641A
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US2281022A
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US2340411A
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US2343813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |