US3492046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of laterally arranged folding chairs
Assignee: EDWARD L WITTNER
•
Filing: 1968-01-31
•
Granted: 1970-01-27
•
Expires: 1988-01-31
Abstract
No abstract record available.
Inventors
- 👤 Edward L Wittner
- 👤 Nicholas M Freda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:14
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/28; A47C4/283; A47C1/00; A47C1/12; A47C1/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US561669A
Cited
US1738473A
Cited
GB403387A
Cited
US2447391A
Cited
US3188138A
Cited
US3312438A
Cited
US3383738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |