US2970639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: Harter Corp
•
Filing: 1958-03-21
•
Granted: 1961-02-07
•
Expires: 1978-03-21
Abstract
No abstract record available.
Inventors
- 👤 Wayne W Good
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:30
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/54; A47C3/00; A47C3/02; A47C3/025; A47C3/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH83280A
Cited
US2034412A
Cited
US1977702A
Cited
GB599980A
Cited
US2619152A
Cited
US2650657A
Cited
US2653649A
Cited
US2643703A
Cited
US2680473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |