US3030135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work holders
Assignee: Individual
•
Filing: 1958-10-13
•
Granted: 1962-04-17
•
Expires: 1978-10-13
Abstract
No abstract record available.
Inventors
- 👤 Frank C Polanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:17
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/5406; B23Q1/5437; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US215030A
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US2436678A
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US2521230A
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US2500784A
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US2757030A
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US2764380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |