Patent US1521481A successfully refreshed from Google Patents.
US1521481A
Expired / Lapsed
US
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Holder
Assignee: Individual
•
Filing: 1924-03-29
•
Granted: 1924-12-30
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Expires: 1944-03-29
Abstract
No abstract record available.
Inventors
- 👤 Spencer Lillian Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:18
CPC Classifications
A; A63; A63F; A63F1/00; A63F1/06; A63F3/00; A63F3/00173; A63F3/00533; A63F2003/00542; A63F9/00; A63F9/001; A63F2009/0049; A63F2009/005; A63F11/00; A63F11/0051; A63F2011/0067; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44641; Y10T24/4465; Y10T24/44769; Y10T24/44906
Claims Analysis
Total Claims: 0
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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) | 1927-12-30 | 1928-06-30 | 1928-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-12-30 | 1932-06-30 | 1932-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-12-30 | 1936-06-30 | 1936-12-30 | $7700.00 | Window Closed / Lapsed |