Patent US621827A successfully refreshed from Google Patents.
US3486789A
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US
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Adjustable chair
Assignee: Pennwalt Corp
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Filing: 1967-12-28
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Granted: 1969-12-30
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Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Norris O Taylor
- 👤 Wilmer P Uhler
- 👤 John M Gardella
- 👤 Jim C Cahlik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:22
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/032; A47C1/03205; A47C1/03211; A47C1/022; A47C1/03; A47C1/036; A47C1/037; A47C7/00; A47C7/36; A47C7/38; A47C7/54; A47C7/541; A61; A61G; A61G15/00; A61G15/02; A61G15/10; A61G15/12; A61G15/125; A61G2203/00; A61G2203/70; A61G2203/72; A61G2203/726
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |