US3386697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable chair height-adjustment mechanism
Assignee: Knoll Associates Inc
•
Filing: 1966-08-02
•
Granted: 1968-06-04
•
Expires: 1986-08-02
Abstract
No abstract record available.
Inventors
- 👤 Helms Charles Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:22
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18; A47C3/20; A47C3/24; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/95; Y10S411/951
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1019686A
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US2026298A
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US2060075A
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US2543924A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |