US2995182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: Heywood Wakefield Co
•
Filing: 1959-05-05
•
Granted: 1961-08-08
•
Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Severin B Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:30
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/021; A47C5/00; A47C5/04; A47C5/06; A47C7/00; A47C7/02; A47C7/22; Y; Y10; Y10S; Y10S160/00; Y10S160/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US176314A
Cited
US1212657A
Cited
US1974948A
Cited
US2622663A
Cited
US2922170A
Cited
FR1144865A
Cited
CH339344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |