Patent US1944273A successfully refreshed from Google Patents.
US1944273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compound
Assignee: AT&T Inc
•
Filing: 1929-06-06
•
Granted: 1934-01-23
•
Expires: 1949-06-06
Abstract
No abstract record available.
Inventors
- 👤 Rutherford George Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:19
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/041; C10M2201/042; C10M2207/00; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/12; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
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) | 1937-01-22 | 1937-07-24 | 1938-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-22 | 1941-07-24 | 1942-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-22 | 1945-07-24 | 1946-01-23 | $7700.00 | Window Closed / Lapsed |