Patent US2754686A successfully refreshed from Google Patents.
Patent US2743030A successfully refreshed from Google Patents.
US2597367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating attachment for the sweatbands of hats or caps
Assignee: Individual
•
Filing: 1947-10-27
•
Granted: 1952-05-20
•
Expires: 1967-10-27
Abstract
No abstract record available.
Inventors
- 👤 John A Nyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:27
CPC Classifications
A; A42; A42C; A42C5/00; A42C5/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |