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US1272131A
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Assignee: Individual
•
Filing: 1917-06-12
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Granted: 1918-07-09
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Expires: 1937-06-12
Abstract
No abstract record available.
Inventors
- 👤 Carl Theodor Silberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; Y; Y10; Y10T; Y10T403/00; Y10T403/65; Y10T403/655
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) | 1921-07-08 | 1922-01-07 | 1922-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-07-08 | 1926-01-07 | 1926-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-07-08 | 1930-01-07 | 1930-07-09 | $7700.00 | Window Closed / Lapsed |