US2808222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood splint window shades
Assignee: Hough Manufacturing Corp
•
Filing: 1953-11-13
•
Granted: 1957-10-01
•
Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Seymour D Wassyng
- 👤 Robert H Ensign
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:31
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2603284A
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US986060A
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US1847077A
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US2026669A
Cited
US2188639A
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US2276898A
Cited
US2631661A
Cited
US2524711A
Cited
US2568001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |