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US2970643A
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Window shade
Assignee: HELEN JANE ADAMSKY
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Filing: 1956-10-22
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Granted: 1961-02-07
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Expires: 1976-10-22
Abstract
No abstract record available.
Inventors
- 👤 Nikolay W Adamsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:58
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/40; A; A47; A47H; A47H23/00; A47H23/02; A47H23/04; A47H23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2029675A
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US2142822A
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US2281022A
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US2328257A
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US2336692A
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US2384377A
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GB575088A
Cited
US2702081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |