US1554527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fern pin
Assignee: De Long Hook & Eye Co
•
Filing: 1924-05-09
•
Granted: 1925-09-22
•
Expires: 1944-05-09
Abstract
No abstract record available.
Inventors
- 👤 Royal B Saalfrank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:22
CPC Classifications
A; A44; A44B; A44B9/00; Y; Y10; Y10S; Y10S411/00; Y10S411/92; Y10T; Y10T24/00; Y10T24/46; Y10T24/468; Y10T24/4688; Y10T24/4689
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-09-21 | 1929-03-23 | 1929-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-21 | 1933-03-23 | 1933-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-21 | 1937-03-23 | 1937-09-22 | $7700.00 | Window Closed / Lapsed |