US3286275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety helmet
Assignee: American Safety Equipment Corp
•
Filing: 1964-12-30
•
Granted: 1966-11-22
•
Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 John L Marchello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:30
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42B1/00; A42B1/04; A42B1/08; A42B3/003
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1080690A
Cited
GB717121A
Cited
US2759186A
Cited
US2768919A
Cited
US3039108A
Cited
US3055011A
Cited
US3137859A
Cited
US3116490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |