Patent US2155661A successfully refreshed from Google Patents.
Patent US2501151A successfully refreshed from Google Patents.
US2501151A
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Assignee: Individual
•
Filing: 1946-05-11
•
Granted: 1950-03-21
•
Expires: 1966-05-11
Abstract
No abstract record available.
Inventors
- 👤 Bayardi Ettore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
A; A44; A44B; A44B5/00; A44B5/002; Y; Y10; Y10T; Y10T24/00; Y10T24/36; Y10T24/3617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US32816A
Cited
GB190225595A
Cited
US1373188A
Cited
US1656409A
Cited
US1841563A
Cited
US2093723A
Cited
US2396668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |