Patent US4219752A successfully refreshed from Google Patents.
Patent US1789827A successfully refreshed from Google Patents.
US1789827A
Expired / Lapsed
US
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Building construction
Assignee: P E SELBY Inc
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Filing: 1926-10-18
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Granted: 1931-01-20
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Expires: 1946-10-18
Abstract
No abstract record available.
Inventors
- 👤 Stewart R Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:10
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78; E04B2/7854; E04B2/7863; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B2001/2415; E04B2001/2418; E04B2001/2424; E04B2001/2448; E04B2001/2454; E04B2001/2457; E04B2001/2481; E04B2001/2484
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) | 1934-01-19 | 1934-07-21 | 1935-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-01-19 | 1938-07-21 | 1939-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-01-19 | 1942-07-21 | 1943-01-20 | $7700.00 | Window Closed / Lapsed |