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US1400615A
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Assignee: Individual
•
Filing: 1920-09-25
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Granted: 1921-12-20
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Expires: 1940-09-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Mccalmont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:01
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5615; Y10T70/5619; Y10T70/5624; Y10T70/5628; Y10T70/5642; Y10T70/5854; Y10T70/5867
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) | 1924-12-19 | 1925-06-20 | 1925-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-12-19 | 1929-06-20 | 1929-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-12-19 | 1933-06-20 | 1933-12-20 | $7700.00 | Window Closed / Lapsed |