US1622971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1926-07-21
•
Granted: 1927-03-29
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Expires: 1946-07-21
Abstract
No abstract record available.
Inventors
- 👤 Porter George Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
A; A62; A62B; A62B35/00; A62B35/04; F; F16; F16B; F16B45/00; F16B45/02; F16B45/024; F16B45/026; F16B45/027; F16B45/028; F16B45/033
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) | 1930-03-28 | 1930-09-27 | 1931-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-03-28 | 1934-09-27 | 1935-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-03-28 | 1938-09-27 | 1939-03-29 | $7700.00 | Window Closed / Lapsed |