US3042994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary files
Assignee: R & R Carbide Manufacturing Co Inc
•
Filing: 1960-05-04
•
Granted: 1962-07-10
•
Expires: 1980-05-04
Abstract
No abstract record available.
Inventors
- 👤 Ruggeberg Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:22
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/02; B23C5/10; B23C2210/00; B23C2210/08; B23C2210/084; B23C2210/32; B23C2210/326; Y; Y10; Y10T; Y10T407/00; Y10T407/18; Y10T407/1815; Y10T407/19; Y10T407/1946; Y10T407/1948
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191302890A
Cited
DE485867C
Cited
FR782879A
Cited
US2070730A
Cited
US2113178A
Cited
US2411209A
Cited
DE848143C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |