US2947352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable head rests for seating units
Assignee: Individual
•
Filing: 1956-06-08
•
Granted: 1960-08-02
•
Expires: 1976-06-08
Abstract
No abstract record available.
Inventors
- 👤 Fridtjof F Schliephacke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:15
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/036; A47C1/037
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US120064A
Cited
US305845A
Cited
US467756A
Cited
US530092A
Cited
US711412A
Cited
US2660225A
Cited
US2664942A
Cited
US2869619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |