Patent US1222504A successfully refreshed from Google Patents.
US1222504A
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US
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Combined level and square.
Assignee: EDGAR A WOODELL
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Filing: 1916-07-24
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Granted: 1917-04-10
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Expires: 1936-07-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Woodell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:54
CPC Classifications
A; A45; A45B; A45B9/00; G; G02; G02C; G02C5/00; G02C5/006; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32385
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) | 1920-04-09 | 1920-10-09 | 1921-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-04-09 | 1924-10-09 | 1925-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-04-09 | 1928-10-09 | 1929-04-10 | $7700.00 | Window Closed / Lapsed |