US2915299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling temperatures
Assignee: Bayer Corp
•
Filing: 1956-12-19
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Granted: 1959-12-01
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Expires: 1976-12-19
Abstract
No abstract record available.
Inventors
- 👤 Herman N Woebcke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/74; B29B7/7476; B29B7/7485; B01; B01F; B01F35/00; B01F35/20; B01F35/21; B01F35/211; B01F35/2115; B29B7/30; B29B7/58; B29B7/72; B29B7/726; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0895; B01F35/90; B01F2035/99; B01F27/00; B01F27/05; B01F27/11; B01F27/112; B01F27/80; B01F33/00; B01F33/80; B01F33/834; Y; Y10; Y10S; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB169358A
Cited
US1598289A
Cited
US2036217A
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US2602461A
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US2706108A
Cited
US2808235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |