US1896057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivot window
Assignee: DAVID LUPTONS SONS CO
•
Filing: 1930-11-29
•
Granted: 1933-01-31
•
Expires: 1950-11-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Sheard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:04
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/08; E05D7/082; E05D7/083; E05D11/00; E05D11/08; E05D11/082; E05D11/087; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148
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) | 1936-01-31 | 1936-08-01 | 1937-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-31 | 1940-08-01 | 1941-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-31 | 1944-08-01 | 1945-01-31 | $7700.00 | Window Closed / Lapsed |