Patent US3473541A successfully refreshed from Google Patents.
US3473541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pocket umbrella frame
Assignee: Bremshey and Co
•
Filing: 1968-04-22
•
Granted: 1969-10-21
•
Expires: 1988-04-22
Abstract
No abstract record available.
Inventors
- 👤 Lothar Pasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:23
CPC Classifications
A; A45; A45B; A45B9/00; A45B9/02; A45B19/00; A45B19/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US607236A
Cited
US1171228A
Cited
US2063624A
Cited
US2150971A
Cited
US3003509A
Cited
US3279512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |