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US3299599A
Expired / Lapsed
US
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Construction units
Assignee: Individual
•
Filing: 1966-03-11
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Granted: 1967-01-24
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Expires: 1986-03-11
Abstract
No abstract record available.
Inventors
- 👤 Stefan H Zachar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:59
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/20; E04B2002/0202; E04B2002/0204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR963760A
Cited
US828930A
Cited
GB143749A
Cited
US1410588A
Cited
US1686757A
Cited
US1785499A
Cited
US2126011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |