US3500473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety headgear assembly
Assignee: Wolverine World Wide Inc
•
Filing: 1967-12-14
•
Granted: 1970-03-17
•
Expires: 1987-12-14
Abstract
No abstract record available.
Inventors
- 👤 John L Marchello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:54
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42B3/062; A42B3/065; A42B3/10; A42B3/12; A42B3/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US882686A
Cited
US2123275A
Cited
US2664567A
Cited
GB918178A
Cited
US3186004A
Cited
US3280402A
Cited
US3274612A
Cited
US3425061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |