Patent US3559113A successfully refreshed from Google Patents.
Patent US1755737A successfully refreshed from Google Patents.
US1755737A
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US
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Assignee: Individual
•
Filing: 1928-06-30
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Granted: 1930-04-22
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Expires: 1948-06-30
Abstract
No abstract record available.
Inventors
- 👤 Kesselring Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:37
CPC Classifications
F; F21; F21V; F21V13/00; F21V13/02; F21V1/00; F21V1/14; F21V17/00; F21V17/04; F21V29/00; F21V29/50; F21V29/502; F21V29/503; F21V31/00; F21V9/00; F21V9/08
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) | 1933-04-21 | 1933-10-21 | 1934-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-04-21 | 1937-10-21 | 1938-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-04-21 | 1941-10-21 | 1942-04-22 | $7700.00 | Window Closed / Lapsed |