Patent US5222786A successfully refreshed from Google Patents.
Patent US2097496A successfully refreshed from Google Patents.
US2097496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reservoir marking instrument
Assignee: Individual
•
Filing: 1936-05-25
•
Granted: 1937-11-02
•
Expires: 1956-05-25
Abstract
No abstract record available.
Inventors
- 👤 Lunzer Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:50
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/02; B43K8/024
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) | 1940-11-01 | 1941-05-03 | 1941-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-11-01 | 1945-05-03 | 1945-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-11-01 | 1949-05-03 | 1949-11-02 | $7700.00 | Window Closed / Lapsed |