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US2825218A
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Assignee: Individual
•
Filing: 1956-08-27
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Granted: 1958-03-04
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Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 O'brien Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:20
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/48; Y; Y10; Y10T; Y10T292/00; Y10T292/31; Y10T292/314; Y10T70/00; Y10T70/30; Y10T70/333; Y10T70/342; Y10T70/35; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5058; Y10T70/508; Y10T70/5084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |