US2638152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headrest
Assignee: Individual
•
Filing: 1948-01-16
•
Granted: 1953-05-12
•
Expires: 1968-01-16
Abstract
No abstract record available.
Inventors
- 👤 Newell B Pulsifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:40
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/38; A47C7/383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US221752A
Cited
US689097A
Cited
US1288560A
Cited
US1378704A
Cited
US1463293A
Cited
US1744364A
Cited
US2133443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |