US2895136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety hat
Assignee: Bullard Co
•
Filing: 1955-06-23
•
Granted: 1959-07-21
•
Expires: 1975-06-23
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Ruggiero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:15
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US451954A
Cited
US1391620A
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US2286843A
Cited
US2398561A
Cited
US2536467A
Cited
US2585937A
Cited
US2742646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |