US2952409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature sensitive control apparatus
Assignee: 3M Co
•
Filing: 1955-11-21
•
Granted: 1960-09-13
•
Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 Russell B Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:06
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/1927; G05D23/1928
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US853505A
Cited
US880272A
Cited
GB213868A
Cited
US1650622A
Cited
US2076211A
Cited
US2183827A
Cited
US2261343A
Cited
US2304489A
Cited
US2312671A
Cited
US2397756A
Cited
US2420043A
Cited
US2385530A
Cited
US2413128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |