Patent US1860377A successfully refreshed from Google Patents.
Patent US2051781A successfully refreshed from Google Patents.
US2051781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrating control method and apparatus for achieving uniformity of average conditions
Assignee: Bridgestone Firestone Inc
•
Filing: 1934-07-27
•
Granted: 1936-08-18
•
Expires: 1954-07-27
Abstract
No abstract record available.
Inventors
- 👤 Roy W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:28
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92114; B29C2948/92142; B29C2948/92152; B29C2948/9218; B29C2948/9219; B29C2948/92209; B29C2948/92323; B29C2948/92428; B29C2948/92438; B29C2948/92504; B29C2948/92542; B29C2948/9258; B29C2948/92609; B29C2948/92638; B29C2948/92647; B29C2948/92676; B29C2948/92685; B29C2948/92704; B29C2948/92809; B29C2948/92819; B29C2948/92923; B29C2948/92933; B29C48/03; B29C48/07; Y; Y10; Y10S; Y10S177/00; Y10S177/06
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) | 1939-08-18 | 1940-02-17 | 1940-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-18 | 1944-02-17 | 1944-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-18 | 1948-02-17 | 1948-08-18 | $7700.00 | Window Closed / Lapsed |