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US1721356A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1928-12-13
•
Granted: 1929-07-16
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Expires: 1948-12-13
Abstract
No abstract record available.
Inventors
- 👤 Solomon G Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:48
CPC Classifications
B; B62; B62C; B62C5/00; B62C5/02; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/43; Y10S24/47; Y10S24/48; Y10T; Y10T24/00; Y10T24/45; Y10T24/45152; Y10T24/45173; Y10T24/45225; Y10T24/45602; Y10T24/45623; Y10T24/45639; Y10T24/45775; Y10T24/45822; Y10T24/45827
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) | 1932-07-15 | 1933-01-14 | 1933-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-07-15 | 1937-01-14 | 1937-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-07-15 | 1941-01-14 | 1941-07-16 | $7700.00 | Window Closed / Lapsed |