US3381997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable chair
Assignee: EDWARD E FRITZ
•
Filing: 1966-09-06
•
Granted: 1968-05-07
•
Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Edward E Fritz
- 👤 Thomas A Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:12
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/0242; A47C1/0246; A47C1/031; A47C1/034; A47C1/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2714922A
Cited
US3005660A
Cited
GB867076A
Cited
US2944595A
Cited
US3016264A
Cited
US3191990A
Cited
US3142509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |