Patent US2777172A successfully refreshed from Google Patents.
US2777172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated building construction
Assignee: Individual
•
Filing: 1955-03-07
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Granted: 1957-01-15
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Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Claude J Debbink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:17
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/04; E04B1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA486483A
Cited
US1441970A
Cited
US1609541A
Cited
US1925769A
Cited
US2137767A
Cited
US2291712A
Cited
US2433149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |