Patent US2676928A successfully refreshed from Google Patents.
Patent US2177699A successfully refreshed from Google Patents.
US2177699A
Expired / Lapsed
US
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Building system
Assignee: GEN HOUSES Inc
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Filing: 1936-04-01
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Granted: 1939-10-31
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Expires: 1956-04-01
Abstract
No abstract record available.
Inventors
- 👤 Howard T Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:06
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B2001/0053; E04B2001/0076; E04B1/2403; E04B2001/2448; E04B2001/2463; E04B2001/2481
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) | 1942-10-30 | 1943-05-01 | 1943-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-30 | 1947-05-01 | 1947-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-30 | 1951-05-01 | 1951-10-31 | $7700.00 | Window Closed / Lapsed |