US2985006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining means
Assignee: Individual
•
Filing: 1958-09-09
•
Granted: 1961-05-23
•
Expires: 1978-09-09
Abstract
No abstract record available.
Inventors
- 👤 Bois John Harry Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:01
CPC Classifications
A; A44; A44B; A44B15/00; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1379; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US587160A
Cited
US811693A
Cited
US1974160A
Cited
GB394334A
Cited
US2067039A
Cited
US2025960A
Cited
US2326963A
Cited
US2816434A
Cited
US2777492A
Cited
US2793842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |