US1291488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of pneumatic control of various mechanisms.
Assignee: MIDDLETOWN MACHINE Co
•
Filing: 1917-02-10
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Granted: 1919-01-14
•
Expires: 1937-02-10
Abstract
No abstract record available.
Inventors
- 👤 Walter G Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:35
CPC Classifications
B; B23; B23B; B23B1/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5158; Y10T82/00; Y10T82/10
Claims Analysis
Total Claims: 0
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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) | 1922-01-13 | 1922-07-15 | 1923-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-01-13 | 1926-07-15 | 1927-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-01-13 | 1930-07-15 | 1931-01-14 | $7700.00 | Window Closed / Lapsed |